"cystidean" meaning in English

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  "etymology_text": "†Cystidea + -an",
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    {
      "form": "cystideans",
      "tags": [
        "plural"
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "Any of the †Cystidea, a class of extinct echinoderms, now known as the †Cystoidea."
      ],
      "id": "en-cystidean-en-noun-BKBZ6XHK",
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        "(zoology, obsolete) Any of the †Cystidea, a class of extinct echinoderms, now known as the †Cystoidea."
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      "topics": [
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      ],
      "glosses": [
        "A stage in the development of many crinoids after the free-swimming larva attaches to a surface, but before it develops the structures necessary to feed."
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        "(zoology) A stage in the development of many crinoids after the free-swimming larva attaches to a surface, but before it develops the structures necessary to feed."
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  "word": "cystidean"
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  "etymology_text": "†Cystidea + -an",
  "forms": [
    {
      "form": "cystideans",
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        "(zoology) A stage in the development of many crinoids after the free-swimming larva attaches to a surface, but before it develops the structures necessary to feed."
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        "natural-sciences",
        "zoology"
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